DriveGreen function140Radiator blind140
The fuel consumption, degree of pollution and vehicle wear depend on driving
style, road condition, weather conditions and the like.
Running-in
Driving in the engine
The engine has to be run in during the first 1 500 kilometres. During this peri-
od, the driving style decides on the quality of the driving-in process.
During the first 1 000 km we recommend not driving faster than 3/4 of the
maximum permissible engine speed, not to drive at full throttle and to dis-
pense with the trailer.
In the area of 1,000 to 1,500 kilometres the engine load can be increased up
to the maximum permitted engine speed.
New tyres
New tyres must firstly be “run in”, as they do not offer optimal grip at first.
Therefore, drive especially carefully for the first 500 km or so.
New brake pads
New brake pads have to first “grind in” because these do not initially have the
best possible braking effect.
Therefore, drive especially carefully for the first 200 km or so.
Tips for economical driving
To achieve the lowest possible fuel consumption, the following instructions
must be observed.
Looking ahead when driving
Avoid unnecessary acceleration and braking.
Switch in an energy saving and timely manner Observe the recommended gear » page 42.
Avoid full throttle and high speeds
Fuel consumption can be reduced by half if only three-quarters of the possible
top speed of your vehicle is used.
Reducing idling
If the vehicle is fitted with the START - STOP system there is an automatic re-
duction of the idling. If the engine is stopped on vehicles without START-STOP
system, such as when waiting in a traffic jam, the fuel economy is already
greater after 30 - 40 s than the fuel quantity which is required for engine re-
start.
Avoid short distances
When driving a short distance of less than about 4 km, the engine cannot
reach its operating temperature. As long as the engine has not reached oper-
ating temperature, the fuel consumption is significantly higher than with the
engine hot.
Pay attention to the correct tyre inflation pressure being maintained
Further information » page 217.
Avoid unnecessary ballast
Per 100 kg of weight, consumption increases by about 0.3 l/100 km. At a speed
of 100 - 120 km/h, a vehicle fitted with a roof rack cross member without a load
will use about 10 % more fuel than normal due to the increased aerodynamic
drag.
Saving electricity
Only turn on electrical consumers (e.g. seat, window and mirror heating and
the like) for as long as necessary.
In Infotainment, the display is shown of up to three consumers which are cur-
rently showing the highest degree of fuel consumption » Owner´s Manual In-
fotainment , chapter CAR - Vehicle settings .
Use the cooling system economically
The air conditioning system compressor uses power from the engine when in
cooling mode, which will affect the fuel consumption.
It recommended to open the windows or the doors of a vehicle for which the
interior has been strongly heated through the effect of direct sunlight in order
to allow the heated air to escape.
The cooling system should not be on if the windows are open.139Starting-off and Driving
DriveGreen functionFig. 172
Shown in the infotainment dis-
play
The DriveGreen function (hereinafter referred to as DriveGreen) evaluates the
driving efficiency based on the information respecting the driving style. Useful
tips for reducing fuel consumption are also offered.
DriveGreen can be displayed on the Infotainment as follows.
›
Press the button in the Infotainment and then in the display the function
keys one after the other
→
DriveGreen
.
A
driving liquid display
With the driving is liquid the display is near the green dot. When accelerating
or braking, the indicator moves down or up.
B
“Green leaf”
The leaf margin shown in green shows with a few seconds, the current drive
efficiency. When driving economically there are several green layers on the
edge of the leaf. If driving less economically, no green colour appears and the
leaf can disappear completely.
C
Graphical review summary
The evaluation of the driving economy during the last 3 minutes or 1.5 minutes
(depending on type of Infotainment) is shown like a beam in 5-second incre-
ments. The current status is shown on the left and moves gradually to the
right. The higher the green bars, the more economic the driving style is.
D
Scoring
In the function key, the evaluation of driving efficiency is shown from the start
in the range from 0 to 100 points. The higher the indicated value, the more
economic the driving style is.
When you press the function key, a detailed assessment showing the driving
efficiency during the last 30 minutes is shown.
If the trip from the start, takes less than 30 minutes, then the assessment
takes in information from the previous trip (the bars are shown in dark green).E
Average fuel consumption
In the function key, the average fuel consumption from the start is displayed.
When you press the function key a detailed overview of the average fuel con-
sumption during the last 30 minutes is shown.
If the trip from the start, takes less than 30 minutes, then the average fuel
consumption takes in information from the previous trip (the bars are shown in
dark green).
F
Symbols in the display
The display may show the following four symbols, which give information on
the current driving style.
Ecological trip
The current speed has a negative effect on fuel consumption. The driving is not liquid, drive with anticipation.
Recommended gear.
Tips for reducing fuel consumption
When tapping the “Page” the display shows useful tips on how to reduce fuel consumption. These tips can to be helpful to drive more economically.
Note
■ Resetting the single-trip memory “from start” also resets the average con-
sumption E and the driving assessment D.■
With some Infotainment types changing the units for the fuel consumption
indicator causes the resetting of the average fuel consumption values
E
.
Radiator blind
The radiator blind(hereinafter: blind) helps to reduce CO 2emissions as well as
harmful emissions and to save fuel.
If the system detects that it is possible to reduce the amount of air flowing to
the radiator, it closes the blinds. As a result the wind resistance at the front of
the vehicle is reduced.
The blinds are located between the grille in the front bumper and the radiator.
140Driving
If the functioning of the blinds is impaired and the vehicle reaches a speed of
about 150 km/h, the following message appears in the display of the instru-
ment cluster.Error: radiator shutter. Function restricted.RADIATOR SHUTTER RESTRICT_
After displaying the above message, the speed of the vehicle is automatically
limited to about 170 km/h.
If this message appears in the winter, the cause may be ice or snow caught up
in the blinds. After the ice or snow has thawed, the blinds are functional again.
If the impairment not due to ice or snow, then assistance from a specialist
should be sought.
Avoiding damage to your vehicle
Introduction
This chapter contains information on the following subjects:
Driving Tips
141
Driving through water
141
This section of the manual contains important information on preventing dam-
age to the vehicle while driving.
Driving Tips
Only drive on such roads and in such terrain, which match the vehicle parame-
ters » page 246 , Technical data as well as your driving skills.
The driver is always responsible for deciding whether the vehicle can handle
travelling in the given terrain.
WARNING■ Always adjust your driving to the current terrain and weather conditions.
Excessive speed or incorrect driving manoeuvres can cause damage to the
vehicle and lead to serious injuries.■
Combustible objects such as dry leaves or twigs caught under the base of
the vehicle could ignite on hot vehicle parts - risk of fire!
CAUTION■ Pay attention to the ground clearance of the vehicle! When driving over ob-
jects which are larger than the ground clearance, the vehicle can get damaged.■
Any objects that get trapped under the vehicle floor must be removed as
soon as possible. These objects can damage the fuel lines, the brake system,
seals and other parts of the vehicle.
■
Drive slowly in unknown terrain and watch out for unexpected obstacles,
such as potholes, rocks, stumps, etc.
■
Check up on confusing sections of unpaved roads before travelling on them
and consider whether such travelling is possible without risk.
Driving through water
Fig. 173
Maximum permissible water lev-
el when driving through water
The following must be observed to avoid damage to the vehicle when driving
through bodies of water (e.g. flooded roads).
›
Therefore determine the depth of the water before driving through bodies of
water.
The water level must not reach above the web of the lower beam » Fig. 173.
›
Do not drive any faster than at a walking speed.
At a higher speed, a water wave can form in front of the vehicle which can
cause water to penetrate into the air induction system of the engine or into
other parts of the vehicle.
›
Never stop in the water, do not reverse and do not switch the engine off.
CAUTION
■ Should water penetrate into the intake system of the engine, there is a
threat of serious damage being incurred by the engine parts!■
When driving through water, some vehicle parts such as chassis, electrics or
transmission can be severely damaged.
141Starting-off and Driving
■Oncoming vehicles can generate water waves which can exceed the permis-
sible water level for your vehicle.■
Potholes, mud or rocks can be hidden under the water, making it difficult or
impossible to drive through the body of water.
■
Do not drive through salt water, as the salt can cause corrosion. An vehicle
coming into contact with salt water is to be thoroughly rinsed with fresh wa-
ter.
Assist systems
General information
Introduction
This chapter contains information on the following subjects:
Radar sensor
143WARNINGThe following general information regarding the use of assistance systems
must be observed.■
The assistance systems only serve to support the driver and do not re-
lieve the driver of the responsibility for driving the vehicle.
■
The increased safety provision, as well as the increased occupant protec-
tion provided by the assistance systems must not tempt you to take risks -
risk of accident!
■
Adjust the speed and driving style to the current visibility, weather, road
and traffic conditions.
■
The assistance systems have physical and system-related limitations. For
this reason, the driver may experience some undesired or delayed system
responses in certain situations. You should therefore always be alert and
ready to intervene!
■
Only enable, disable or set the assistance systems when you have the car
fully under control, in every traffic situation - risk of accident!
142Driving
Upon deactivation, in the instrument cluster the indicator light illuminates
and the display shows the following message.Traction control (ASR) deactivated.ASR OFF
Upon activation, in the instrument cluster the indicator turns
and the display
shows the following message.
Traction control (ASR) activated.ASR ON
The TCS should normally always be enabled. The system should be deactivated
only in the following situations, for example. ▶ When driving with snow chains.
▶ When driving in deep snow or on a very loose surface.
▶ When it is necessary to “rock” a car free when it has become stuck.
Electronic differential lock (EDL and XDS)
Read and observe
on page 144 first.
EDL
EDL prevents the turning of the respective wheel of the driven axle. EDL
brakes the spinning wheel, if necessary, and transmits the driving force to the
other driving wheel. Driving becomes easier on road surfaces with different
traction under each wheel of the driven axle.
EDL switches off automatically to avoid excessive heat generation on the
brake of the wheel being braked. Once the brakes have cooled down, there is
an automatic re-activation of EDL.
XDS
XDS is an extension to the electronic differential lock. XDS does not respond to
traction, but to the load relief of the inner front wheel of the driving axle dur-
ing fast cornering.
The automatic brake intervention on the brake of the wheel with reduced load
prevents the wheel from spinning. Thus, the traction is improved and the vehi-
cle can continue to follow the desired track.
Driver Steering Recommendation (DSR)
Read and observe
on page 144 first.
In critical situations, the DSR provides the driver with a steering recommenda-tion in order to stabilise the vehicle. The DSR is activated, for example, on the
right and left vehicle side when braking sharply on different road surfaces.
Brake Assist (HBA)
Read and observe
on page 144 first.
The HBA increases the braking effect and helps to reduce the braking dis-
tance.
The HBA is activated by very quick operation of the brake pedal. In order to
achieve the shortest possible braking distance, the brake pedal must be ap-
plied firmly until the vehicle has come to a standstill.
The HBA function is automatically deactivated when the brake pedal is re-
leased.
Hill Start Assist (HHC)
Read and observe
on page 144 first.
When driving on slopes, HHC allows you to move your foot from the brake ped-al to the accelerator pedal without the vehicle rolling downhill on its own.
The system holds the brake pressure produced by the activation of the brake
pedal for approx. 2 seconds after the brake pedal is released.
The HHC is active from a 5% slope if the driver's door is closed. HHC is only ev-
er active on slopes when in forward or reverse start off.
Multi collision brake (MCB)
Read and observe
on page 144 first.
The MCB helps to decrease speed after a collision through automatic brakinginterventions and to stabilize the vehicle. This reduces the risk of a subse-
quent crash due to uncontrolled vehicle movement.
145Assist systems
Function keysFig. 186
Function keys
Read and observe and on page 151 first.
The mode changes and other adjustments are made using the function keys
on the display.
Function buttons » Fig. 186
Turns off the display of the area behind the vehicle
Mode - traverse parking
Mode - parallel parking
Mode - driving up to a trailer / distance monitoring
Mode - monitor the area behind the vehicle (wide view)
Display settings - brightness, contrast, colour
Parking aid (mini display)
Enabling/disabling the audible signals
Enabling/disabling the mini display
Switch to full screen display
Guidelines and roadway
Fig. 187
Orientation and lane lines
ABCDEFGRead and observe and on page 151 first.
In the mode for transverse and parallel parking guidance for the assessment of
distance and lane lines are displayed.
Display » Fig. 187
The distance is about 40 cm (safety distance limit)
The distance is approximately 100 cm
The distance is approximately 200 cm
Lane lines
The distance between the side lines corresponds approximately to the vehicle width including mirrors.
Lane
The lane lines
D
» Fig. 187 change depending on the steering angle and indi-
cate the roadway on which the vehicle would take with the current steering
wheel position. The lane lines terminate approximately 300 cm behind the ve-
hicle.
CAUTION
The objects shown in the display can be closer or even further away than they
appear. This is especially the case in the following situations.■
Protruding objects, such as the rear of a truck and the like.
■
When driving from a horizontal surface into a slope or a depression.
■
When driving from a slope or a depression onto a horizontal surface.
Note
The distance between the orientations behind the vehicle may vary slightly
depending on the load condition of the vehicle rear and on the road inclination.ABCD153Assist systems
WARNING (Continued)■The ACC does not react when approaching a stationary obstacle, such as
traffic jams, vehicle breakdowns or vehicles waiting at a traffic light.■
The ACC does not respond to crossing or oncoming objects.
■
If the ACC does not decelerate fast enough, immediately apply the vehi-
cle's foot brake.
WARNINGFor safety reasons, do not use the ACC under the following conditions.■When driving in turning lanes, motorway exits or construction sites, to
avoid an unwanted acceleration to the stored speed.■
When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
■
When road conditions are poor (e.g. ice, slippery road, gravel, dirt road).
■
When driving around “sharp” bends.
■
When riding on a steep gradient / high slope.
■
When driving through places where metal objects (such as metal build-
ings, railway tracks, etc.) can be found.
■
When driving through very divided and enclosed spaces (such as large-ca-
pacity garages, car ferries, tunnels and the like.).
Note
■ The ACC is designed primarily for use on motorways.■The ACC reduces the speed by automatically releasing the accelerator or by
means of a braking procedure as appropriate. If the brakes are used for an au-
tomatic speed reduction at any moments, then the brake light illuminates.■
In case of failure of more than one brake light on the vehicle or on the con-
nected trailer, the ACC becomes unavailable.
■
The control automatically cancels the engagement of the brake supportive
assistance systems (e.g. ESC) or when the maximum permitted engine speed is
exceeded.
OperationFig. 202
Instrument cluster display: Examples of ACC displays
Fig. 203
Instrument cluster display: Examples of ACC status displays
Read and observe
on page 163 first.
The ACC allows you to set a speed of 30 - 160 or 210 km / h (depending on
equipment) and the distance to the vehicle ahead in the range of a very short
to a very long distance.
The ACC adjusts the set speed with respect to the detected vehicle ahead,
thus maintaining the selected proximity.
The ACC can detect a vehicle that is up to approx. 150 m ahead using the radar
sensor.
ACC display » Fig. 202
Vehicle detected (control active).
Line showing the displacement of the distance when setting » page 167,
Set the clearance level .
12164Driving
Start controlRead and observe
on page 163 first.
Basic requirements for start of control The ACC is activated.
The TCS is activated » page 143, Braking and stabilisation systems .
On vehicles with a manual transmission , the second gear or higher must
be engaged.
On vehicles with an automatic transmission , the selector lever must be in
the D/S position or in the Tiptronic position.
On vehicles with a manual transmission , the current speed must be higher
than approx. 25 km/h.
The control be started with the key or by adjusting the lever
» Fig. 204 on page 165 into the sprung position.
Button
›
Press the button .
The ACC will adopt the current speed and execute control.
Lever position
›
Set the lever into the sprung position Set.
The ACC will adopt the current speed and execute control. Should the speed be stored already, the ACC adopts this speed and executes control.
The warning light illuminates in the instrument cluster when the regulation
is switched on.
Note
■ If control is started at a speed of less than 30 km/h on vehicles with an auto-
matic transmission, the speed of 30 km/h is stored. The speed increases auto-
matically to 30 km/h or is regulated with respect to the speed of the vehicle
ahead.■
When TCS is disabled, it will be activated automatically upon starting control.
■
If the TCS is deactivated during control, control is stopped automatically.
Stop/resume control
Read and observe
on page 163 first.
Stop control
›
Set the lever into the sprung position
» Fig. 204 on page 165 Set.
Or
›
Apply the brake.
Control stops, the speed remains stored.
Resume control
›
Start control » page 166.
WARNINGControl may only be resumed if the stored speed is not too high for the cur-
rent traffic conditions.
Note
Regulation is also stopped when the clutch is held down for longer than 30 s.
Set/change the desired speed
Read and observe
on page 163 first.
The desired speed can be set or changed using the control lever » Fig. 204 on
page 165 .
The set speed is stored upon releasing the lever or the button on the button
on the lever.
Setting/changing the speed by 10 km/h at a time (
) - requirements
The ACC is activated.
Increasing the speed by 1 km/h at a time (
) - requirements
The ACC is activated.
The vehicle is controlled.
Decreasing the speed by 1 km/h at a time (
) - requirements
The ACC is activated.
The vehicle is controlled.
166Driving